Fix bug #61697 - spl_autoload_functions returns lambda functions incorrectly

NEWS

@@ -13,6 +13,8 @@ PHP                                                                        NEWS
 - SPL:
   . Added RecursiveTreeIterator setPostfix and getPostifx methods. (Joshua 
     Thijssen)
+  . Fixed bug #61697 (spl_autoload_functions returns lambda functions 
+    incorrectly). (Laruence)
 
 - Streams:
   . Fixed bug #65268 (select() implementation uses outdated tick API). (Anatol)

UPGRADING

@@ -179,6 +179,9 @@ PHP 5.5 UPGRADE NOTES
 - Functions in the socket extension now do not emit warnings when the
   errno is EAGAIN, EWOULDBLOCK or EINPROGRESS.
 
+- Since 5.5.2, spl_autoload_functions() returns different names for 
+  different lambda functions registered via spl_autoload_register().
+
 ========================================
 5. New Functions
 ========================================

ext/spl/php_spl.c

@@ -743,8 +743,17 @@ PHP_FUNCTION(spl_autoload_functions)
 				}
 				add_next_index_string(tmp, alfi->func_ptr->common.function_name, 1);
 				add_next_index_zval(return_value, tmp);
-			} else
-				add_next_index_string(return_value, alfi->func_ptr->common.function_name, 1);
+			} else {
+				if (strncmp(alfi->func_ptr->common.function_name, ZEND_STRL("__lambda_func"))) {
+					add_next_index_string(return_value, alfi->func_ptr->common.function_name, 1);
+				} else {
+				   char *key;
+				   uint len;
+				   long dummy;
+				   zend_hash_get_current_key_ex(SPL_G(autoload_functions), &key, &len, &dummy, 0, &function_pos); 
+				   add_next_index_stringl(return_value, key, len - 1, 1);
+				}
+			}
 
 			zend_hash_move_forward_ex(SPL_G(autoload_functions), &function_pos);
 		}

ext/spl/tests/bug61697.phpt

@@ -1,7 +1,5 @@
 --TEST--
 Bug #61697 (spl_autoload_functions returns lambda functions incorrectly)
---XFAIL--
-Bug #61697 not fixed yet
 --FILE--
 <?php